World War II bunker still standing on the New Jersey beach.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

This local gem houses the largest collection of pre-Raphaelite paintings outside of the U.K.

This scout retreat, still in use today, was the filming location for the original “Friday the 13th” film.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

Beautiful views of the surrounding hills and birds of prey can be found at this sanctuary.

The largest collection of Frazetta originals in the world.

The oldest surviving botanic garden in the United States.

A farm in New Jersey grew a most unusual crop for AT&T's testing purposes.

Where America’s first doomsday cult awaited the end of the world.

Step inside Lucy, the world's largest "elephant."

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

Long hidden under grime, the politically radical murals of a little known Yugoslavian master are finally getting their due.

The Pennsylvania shopping center was once the setting for the 1978 film, "Dawn of the Dead."

A unique sculpture park that specializes in the huge and bizarre.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

A beloved horticultural oasis on the grounds of a wealthy family's former estate.

Slyly buy a shake in the Parker Meridien lobby.

Once on display alongside a giant Gumby, it’s as tall as a nine-story building when fully extended.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

A reservoir of vintage pinball machines and arcade games for the nostalgic and thrill seeking.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.